newHtml("Test Page", "<a id=\"foo\" href=\"foo.html\">foo</a>"));
AbstractDocument page = agent().get("http://test.com");
Link link = page.links().find("#foo");
assertNotNull(link);
assertEquals("http://test.com/foo.html", link.href());
}
@Test
public void testLinkQueryByClass() {
addPageRequest("http://test.com",